// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.api;

import java.lang.reflect.Field;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.TimeZone;

import org.apache.cloudstack.usage.UsageService;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.runners.MockitoJUnitRunner;

@RunWith(MockitoJUnitRunner.class)
public class ApiResponseHelperTest {

    @Mock
    UsageService usageService;

    ApiResponseHelper helper;

    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss ZZZ");

    @Before
    public void injectMocks() throws SecurityException, NoSuchFieldException,
            IllegalArgumentException, IllegalAccessException {
        Field usageSvcField = ApiResponseHelper.class
                .getDeclaredField("_usageSvc");
        usageSvcField.setAccessible(true);
        helper = new ApiResponseHelper();
        usageSvcField.set(helper, usageService);
    }

    @Test
    public void getDateStringInternal() throws ParseException {
        Mockito.when(usageService.getUsageTimezone()).thenReturn(
                TimeZone.getTimeZone("UTC"));
        Assert.assertEquals("2014-06-29'T'23:45:00+00:00", helper
                .getDateStringInternal(dateFormat.parse("2014-06-29 23:45:00 UTC")));
        Assert.assertEquals("2014-06-29'T'23:45:01+00:00", helper
                .getDateStringInternal(dateFormat.parse("2014-06-29 23:45:01 UTC")));
        Assert.assertEquals("2014-06-29'T'23:45:11+00:00", helper
                .getDateStringInternal(dateFormat.parse("2014-06-29 23:45:11 UTC")));
        Assert.assertEquals("2014-06-29'T'23:05:11+00:00", helper
                .getDateStringInternal(dateFormat.parse("2014-06-29 23:05:11 UTC")));
        Assert.assertEquals("2014-05-29'T'08:45:11+00:00", helper
                .getDateStringInternal(dateFormat.parse("2014-05-29 08:45:11 UTC")));
    }
}